NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

9 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days — NPA 920
ONVOY, LLC - WI 4
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 2
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 1
T-MOBILE USA, INC. 1
INTRADO COMMUNICATIONS, LLC 1
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2022-07-05 920-644-7XXX 7000–7999Assigned TERRA NOVA TELECOM INC. 145J MAYVILLE WI
2022-06-30 920-641-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 GREEN BAY WI
2022-06-29 920-718-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 OSHKOSH WI
2022-06-28 920-503-2XXX 2000–2999Assigned TDS METROCOM, LLC 520K PULASKI WI
2022-06-22 920-200-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DE PERE WI
2022-06-17 920-305-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F GREEN BAY WI
2022-06-13 920-200-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J DE PERE WI
2022-06-13 920-763-9XXX 9000–9999Assigned VONAGE AMERICA LLC 197D BEAVER DAM WI
2022-06-10 920-307-1XXX 1000–1999Assigned VONAGE AMERICA LLC 197D WAUPUN WI
2022-06-10 920-714-3XXX 3000–3999Assigned VONAGE AMERICA LLC 197D APPLETON WI
2022-06-10 920-952-5XXX 5000–5999Assigned VONAGE AMERICA LLC 197D FONDDU LAC WI
2022-05-10 920-970-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 FONDDU LAC WI
2022-05-05 920-838-8XXX 8000–8999Assigned UNITED STATES CELLULAR - WI 6274 PLYMOUTH WI
2022-05-05 920-952-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FONDDU LAC WI
2022-05-04 920-873-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 GREEN BAY WI
2022-05-02 920-409-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 JOHNSONCRK WI
2022-04-29 920-580-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 OSHKOSH WI
2022-04-28 920-698-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 SHEBOYGAN WI
2022-04-27 920-808-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 OSHKOSH WI
2022-04-25 920-571-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MANITOWOC WI
2022-04-19 920-414-0XXX 0000–0999Assigned UNITED STATES CELLULAR - WI 6274 NEENAH WI
2022-04-18 920-842-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K SURING WI
2022-04-13 920-873-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GREEN BAY WI
2022-04-13 920-873-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GREEN BAY WI
2022-04-11 920-348-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CAMBRIA WI
2022-04-05 920-503-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 PULASKI WI
2022-04-05 920-765-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 WAUTOMA WI
2022-03-29 920-714-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H APPLETON WI
2022-03-25 920-404-3XXX 3000–3999Assigned METROPCS, INC. 5562 APPLETON WI
2022-03-24 920-552-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 OOSTBURG WI
2022-03-14 920-873-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 GREEN BAY WI
2022-03-08 920-414-1XXX 1000–1999Assigned TON80 COMMUNICATIONS, LLC 516J NEENAH WI
2022-03-04 920-607-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 CAMPBELSPT WI
2022-03-01 920-718-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 OSHKOSH WI
2022-03-01 920-718-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 OSHKOSH WI
2022-02-17 920-874-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J NEWTONBURG WI
2022-02-17 920-972-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J BURNETT WI
2022-02-14 920-792-0XXX 0000–0999Assigned TON80 COMMUNICATIONS, LLC 516J NEWTON WI
2022-02-11 920-589-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K PICKETT WI
2022-02-11 920-752-9XXX 9000–9999Assigned TON80 COMMUNICATIONS, LLC 516J REDGRANITE WI
2022-02-11 920-953-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 VALDERS WI
2022-02-09 920-714-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 APPLETON WI
2022-02-09 920-714-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 APPLETON WI
2022-02-08 920-631-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F BEAVER DAM WI
2022-02-08 920-631-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F BEAVER DAM WI
2022-02-07 920-514-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K COLEMAN WI
2022-02-07 920-582-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K WINNECONNE WI
2022-02-07 920-987-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K POY SIPPI WI
2022-02-07 920-990-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K RIPON WI
2022-02-03 920-289-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 PICKETT WI

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.